While the first lady is telling Americans to drink more water, her friend Stephen Colbert is having a little fun with her advice to drink just one more glass of water a day.

It’s always fun to see what the host of the “Colbert Report” has to say about big food stories. Sometimes Stephen Colbert uses his wit and sarcasm to highlight a real problem like eliminating food stamps from the farm bill. Other times, his commentary is a more light-hearted.

Last week he had a little fun with Michelle Obama’s Drink Up campaign. He asks, "Why would anyone want to drink the same stuff they put in toilets?"